Ratchet wrench



Oct 18 1927 A.r DE HERTELENDY RATCHET WRENCH Filgd Aug. 9,l 192e @um l llNveN'ToR Patented Oct. 18, 1927.

UNITED vSTATES Annoan HERTELENDY, or'wAsi-rineaon', nis'rnic'r orCOLUMBIA. j 7

' f i RATCHET WRENCH.

Application filed August 9, 1926. Serial No. 128,216.

The object of this invention is to provide a wrench with reversibleratchet mechanismk and with independently adjustable jaw members,eccentrically mounted, and adapted for movement to vvarious positions,for obtaining a large number of' adjustments in order to iit nuts ofdifferent standard sizes. A A further object is to effect this result byproviding a jaw mounting device having reversible ratchet mechanismassociated therewith and eccentric elements of diierent sizes,constituting working faces, these elements being retained in ythespecial manner v indicated below.

A further object is to provide for varying the eiiective size oieitherjaw member by the use of detachable means which may be applied in orderto meet particular requirements. j

With the foregoing and other objectsin view, the invention consists inthe novel construction and arrangement 'of elements'described,illustrated and claimed, it' being understood that modifications may bemade within the scope ofL the claims Without departing from the spiritof the invention.

In thedrawings forming part of this application,

Fig. 1 may be consideredV as a plan view ot the wrench. l

Fig. 2 is a plan view showing the adjustable elements of the jaws inanotherposition, for use on a very much smaller nut than that shown inFig. 1,-this view illustratingthe jaw mounting devices detached. Fig. 3is a view of the lower element of the structure receiving the jawmounting meansof Fig. 2. Y Fig. 4 is a section on line of Fig. 1. `Fig.5 is a section on line 5-5 of Fig; 1. r Fig. 6 is a view showinginperspe'ctive detached portions of the structureot Fig. 2.

and lshowing the manner in which the adja-4 cent end portions of theseelements are formed, permitting of assembly in order to poduce thestructure of Figs. 1 and 2.

Fig. 7 is an end elevation of the adjustable element, or jaw face, shownin the upper:

part of Figs. 1 and 2.

Fig. 8 is a similar view of the other adjustableelement or jaw face.

Fig. 9 is a perspective view of a channel element which may be appliedto one or both of the movable jaw faces, in order to ali'ord additionaladjustment, and increase the scope or number of the` changes in adjust'-ment made possible, in order to accommodate the wrench to diiiieren'tnuts.: ,Y i

` The mainfportion of the wrench comprises a two-part housing, andonepart,vwhich will be termedv theupper portion or cover portion, forconvenience,is designated. 10,-.-01

that portion comprising a part of the handle i is .so designated, andformed therewith fis a partly circular portion llla-dapted to; co-

operate with a corresponding portion 12 ormedintegrally with `theportionv 13 of the handle which cooperates with elementy 10, informingthe complete handle.. The

vportions 11 and 12 each form approximately 4three-fourthsot a circle,`asthe structure is illustrated in the drawings, andportion 12isgprovidedwith' an annulary shoulder 111 x `adapted to receive the diskor jaw mounting .device 15 of Fig. 2, the cover'portion 11 retainingelement 15 in contact'with the shoul-` der vjust referredto, but'permitting rotary movement.

Element 15 providedfwithalseries yoi i teeth 16, and these teeth areengaged bya dog 17 carried by a lrotatable disk 18 suitably mountedbetween theV elements of the housing and adapted to be partly rotated byI thumb member v19. I

Disk 18 carries' a lug 18-,.and a' forked 'resilient device' including.theq diverging members 20l and 21 -is-mounted ywithin the housing, and4the .diverging portions cooperate-with lug-18T,- one ofthese `portionsat a time serving to retain the dog 17 inyielding engagement .withtheteethll. The disk 18 may be shifted by thumb member 19-on "theoutersidev of the housing, landrotated .thrul the greater portion ofa circle,in order -to engage the teeth from the oppositeside.

The lug 18 would ,th-en' bey in--engagement with resilient member 21,whereas ,in Fig. 1. it

is shownas being in engagement'with member 20. j Y use of the tool as aratchet wrench, operat- This arrangement ,permits .of ythe f ing ineitherdirection, depending upon the position of the dog 17 andi themounting means therefor. v

The element 15 mounts jaws 25 and 26, and a segmental-element 27providedwith teeth 16 is adapted to till the segmental opening shown inthe element l5. The adjustable jaws, or working faces, 25 and 26 aresupported by trunnions and 26', and these trunnions at one end of eachjaw are mounted in bearings in element l5. rlie-opposite ends of `theadjustsible jaws carry trunnions each provided with slots extending. atan angle with ,reference to each other, these vtrunnionsattheleft ofFig. 2, and further shown in Figures 6, and 8, Abeingdesignated 28. Thetrunnions are eccentric wit-li reference to the main axesof each of theadjustable jaws 2,5` and 26, and each of these ja'iws inayberotated thrua quarter turnjand retained infthatposition. Y

T"'Tl`i"`e'" jaws 25" and "26 'shown respectively in Figures 7 and 8farei of the relative propor- 'h "there" illustrated, and since.eaclreleii'eot 25iaiid26ma`y be rotated thru' a lquarter 'tin vv'it'lrreference to each" side of the other jaw, theiecieei'itric mountingoit'thejaws per smits ,of four V"different adj ust-ments between geleineiijt25 and each side of element 26, in '(`ii"`dei*,t `)"V provide tourdiiierent positions by theadjustmentotonejaw. l

s the ,therljaw'may likewisebe rotated andsiniilarl'y adjusted', atotalot sixteenad-- jiistments' may be obtain ed 'in this", manner, that`-1 iTnut of the max nnuin size illustrated ""nFig. 1', may becontrolled, oranut of the s izesho'wniin y2y maybe similarlycnltrolle'cl"by a 'differentadjustment;` and nuts "ot" varying' 'sizesbetween these extremes' (or sixteen s'izes'fin all) may` be 4handled `bythe `wrench,"without"further adjustment or provision therefor;'l-Iowever, the channel element 30 of Fig. 9 may be employed inconietionwitli "eitherfoi" b'otli aws, 'and additional",adjustments maybe provided by applyng the clirannelielement`to 'the facefo the kWio'rjaws! llioreover`,eleinents`30 of `dirent`thicknesses may be provided. i

VIn v`order to maintain anl adjusted position ofthe jaws, thefsegmentalelement 27 is pro- "vid'e'd 'wvithjzt tongue132 adapted to engage'anybffthe slots foithe element 28; `1Liigs 34h60' r'atewitli'therecessed portions T35 'in thee'n "alls of the shoulders l5 and a close'fit i's'here rovided the`trunnions 28 bein?i4 'received byfthebeariiigs86, and being rotatfable 'inthese bearings until loelied by the wardLnTvemeitV fot" segmental 'elementL tcausing thetongues 32 and lug341to`engag`e as dicated. The element l5 constituting i V ,f.., i A i .tif." 'ay ja mounting device, and the isegmental inembei'f2`7 `appliedthereto, orin a s'trucftuife "rotatable `in the "socket produced y'elements gular in crossfsection,andfcarried ,by said rineans",` and adetachable segm'ei'ital bridging element, forming 4with anfelement`of'jthe mounting in'eans a circular rotatable device. 13.2 In :awrench, jaw mounting meansin cluding ratchet mechanism, and plurality ofeccentric ally mounted aivs carried jby `'said means, the jawsincluding",trunnionsf bv which `they rare irotatahly;4 mounted," `andmeansbridging the jaws, and engaging one of ,the trunnions of each `jawAfor retaining the jaws in anf adjusted position.` i

In a wrenelnvlj aw mounting means comprising a segmental element and adetachable bridging element of segmental form, anec` ,centri'callymounted jaw carried. by the mounting means, said jaw'being angular incross-section, means for retaining the aw `in a fixed position, and asecond .jaw opposite that `first named `and engaged `by fthe Y,bridgingelementi fr `5Min a'wrench, `jaw mounting means o f segmental foringandaisecondfelen'ient of segmental form complementary to that iirst named,"for completing an annular structure,

vsaid ture 1having 'fteeth' formed exteriojfly Vth of, means for"engaging the teeth, an eccentricallymounted jaw carriedbythe mountingmeans,saidqjawpbeing angular in cross-section, means for retaining-,theyjiiwin `a fined position, va' second jaw opposite" that firstna1ned,and` adetacliable ,device for varying'the effective size of theeccentrically mounted jaw." 7 i 6. In arwrenoh, jaw mountingnieans in--Cluding a plurality o' complementary' seg# i 'mental elements andratehetmechanism, said elements Aconstituting a rotatable" device, andspaced `.jaws carriedl by one of the segmental elements, the"l other ot'said segmental A"elements "bridging the Vspacel between 'coi-refspending ends ofthe aws, i

In testimony whereotl atiix myV signature.

`Armen DE iinirrite-.nunr.A

